Method and device for adjusting picture quality of displayer

ABSTRACT

The present disclosure discloses a method for adjusting picture quality of displayer, comprising: adjusting a core of a to-be-adjusted-displayer to make Gamma-value of the to-be-adjusted-displayer reach a target value under a preset gray scale, and taking the current Gamma-value of the core as under the preset value; computing the value of γn′ corresponding to the to-be-adjusted-displayer by a preset algorithm based on the γn, the values of γ0 and γ0′ corresponding to a standard-PQ-displayer, which are under one same gray scale; and adjusting picture quality of the to-be-adjusted-displayer according to the γn′. The present disclosure also discloses a device for adjusting picture quality of displayer.

FIELD

The present disclosure relates to the technical field of displayers, inparticular, relates to a method and a device for adjusting picturequality of displayers.

BACKGROUND

Picture quality (herein after PQ) of a television needs to be adjustedduring design of the television. Since the adjustment of picture qualityis delicate, it is common to obtain an adjusting data by performing theadjusting on one standard-PQ-displayer first, and then to apply theobtained data to other displayers of same model which are produced inthe same batch.

However, for any batch of electronic products, product performancedeviation or dispersion among individuals are inevitably existed. Evenif two products are of one same model and batch, the performance of thetwo products are not assuredly the same. Such issue also exists in ThinFilm Transistor Liquid Crystal displayer television or other displayerdevices. Due to factors such as manufacturing accuracy and qualitycontrol, individuals of one batch are usually different in brightnessand color. For instance, among the displayers of one same model whichare produced in the same batch, the maximum brightness differencereaches nearly 20%, and the Gamma-value ranges from 1.8 to 2.5. Thedifference between Gamma-value-values under different gray scales iseven larger for one same displayer. These differences have directlyaffected the picture quality of the displayers, such as brightness, andlevel of contrast.

So, due to the individual differences between the standard-PQ-displayerand the to-be-adjusted-displayer, applying the adjusting data of thestandard-PQ-displayer to the to-be-adjusted-displayers may seriouslyaffect the picture quality of the displayers that finally obtain. Thepicture quality finally obtained may deviate from or even be antipodalto what is initially desired.

Currently, in order to make the mass-produced products achieve thepicture quality as a standard-PQ-displayer as desired at the beginningof design, it is common to strictly control components in consistency soas to reduce the performance difference among the mass-producedindividuals. However, in practice, it is still difficult to assure thepicture quality of the mass-produced products to be as good as thepicture quality of a standard-PQ-displayer.

The above content is only used to assist in understanding the technicalschemes of the present disclosure, and does not mean to admit that theabove content is the prior art.

SUMMARY

The main purpose of the present disclosure is to provide a method and adevice for adjusting picture quality of displayer, to solve the problemthat the picture quality of mass-produced products is not as good as thepicture quality of a standard-PQ-displayer, even though by controllingcomponents in consistency of the mass-produced products.

In order to achieve the above object, the present disclosure provides amethod for adjusting picture quality of displayer, which includes thefollowing steps:

-   -   adjusting a core of a to-be-adjusted-displayer to make        Gamma-value (γ) value of the to-be-adjusted-displayer reach a        target value under a preset gray scale, and taking the current        Gamma-value of the core as the value of γ_(n) under the preset        value;    -   computing the value of γ_(n)′ corresponding to the        to-be-adjusted-displayer by a preset algorithm based on the        value of γ_(n), the values of γ₀ and γ₀′ corresponding to a        standard-PQ-displayer, which are under one same gray scale; and    -   adjusting picture quality of the to-be-adjusted-displayer        according to the value of γ_(n)′;    -   and, the value of γ₀ is Gamma-value of a core of the        standard-PQ-displayer when Gamma-value of the        standard-PQ-displayer reaches the target value, the value of γ₀′        is Gamma-value of the core of the standard-PQ-displayer when        picture quality of the standard-PQ-displayer reaches a target,        the value of γ_(n) is Gamma-value of the core of the        to-be-adjusted-displayer when Gamma-value of the        to-be-adjusted-displayer reaches the target value, and the value        of γ_(n)′ is Gamma-value of the core of the        to-be-adjusted-displayer when the picture quality of the        to-be-adjusted-displayer reaches the target.

Preferably, the method further includes:

-   -   acquiring a functional relationship between Gamma-value of the        displayer and Gamma-value of the core, and a functional        relationship between Gamma-value of the core of the        standard-PQ-displayer and Gamma-value of the core of the        to-be-adjusted-displayer; and    -   acquiring the preset algorithm for computing the value of γ_(n)′        corresponding to the to-be-adjusted-displayer by operation on        the functional relationships.

Preferably, the functional relationship between Gamma-value of thedisplayer and Gamma-value of the core is:

Gamma-value of the displayer including Gamma-value of the core andGamma-value of a Timer Control Register, the functional relationshipbetween Gamma-value of the displayer and, Gamma-value of the core andGamma-value of the Timer Control Register being presented as follows:

n{circumflex over ( )}(γ₀·γ_(T0))=n{circumflex over ( )}a, for thestandard-PQ-displayer, when Gamma-value of the displayer is the targetvalue a; and

n{circumflex over ( )}(γ_(n)·γ_(Tn))=n{circumflex over ( )}a, for theto-be-adjusted-displayer, when Gamma-value of the displayer is thetarget value a; and,

Gamma-value of the Timer Control Register being determined by a screendriving plate and is a fixed value; the value of γ_(T0) is Gamma-valueof the Timer Control Register of the standard-PQ display; the value ofγ_(Tn) is Gamma-value of the Timer Control Register of theto-be-adjusted-displayer.

Preferably, the preset algorithm is γ_(n)′=γ₀′·γ_(n)/γ₀.

Preferably, before the operation of adjusting a core of ato-be-adjusted-displayer to make Gamma-value of theto-be-adjusted-displayer reach a target value under a preset gray scale,and taking the current Gamma-value of the core as the value of γ_(n)under the preset value, the method further includes:

-   -   adjusting the core to make Gamma-value of the        standard-PQ-displayer reach the target value under the preset        gray scale, and taking the current Gamma-value of the core as        the value of ≢₀ under the preset value;    -   adjusting the core to make picture quality of the        standard-PQ-displayer reach the target under the preset gray        scale, and taking the current Gamma-value of the core as the        value of γ₀′ under the preset value;    -   inputting the values of γ₀ and γ_(n)′ corresponding to the        standard-PQ-displayer into the to-be-adjusted-displayer.

Preferably, the method further includes:

-   -   setting the target value of Gamma-value of the displayer        corresponding to the preset gray scale according to gray level.

Preferably, the operation of setting the target value of Gamma-value ofthe displayer corresponding to the preset gray scale according to graylevel includes:

-   -   setting the target value of Gamma-value of the displayer        corresponding to a gray scale of a lower gray level greater than        or equal to the target value of Gamma-value of the displayer        corresponding to a gray scale of a higher gray level.

Preferably, the method further includes:

-   -   sending a warning message, when the value of γ_(n)′ is not        obtained by adjusting the core.

In addition, in order to achieve the above object, the presentdisclosure also provides a device for adjusting picture quality ofdisplayer, which includes:

-   -   an adjusting module, configured to adjust a core of a        to-be-adjusted-displayer to make Gamma-value of the        to-be-adjusted-displayer reach a target value under a preset        gray scale, and taking the current Gamma-value of the core as        the value of γ_(n) under the preset value; and    -   a computing module, configured to compute the value of γ_(n)′        corresponding to the to-be-adjusted-displayer by a preset        algorithm based on the value of γ_(n), the values of γ₀ and γ₀′        corresponding to a standard-PQ-displayer, which are under one        same gray scale;    -   the adjusting module being further configured to adjust picture        quality of the to-be-adjusted-displayer according to the value        of γ_(n)′;    -   and the value of γ₀ is Gamma-value of a core of the        standard-PQ-displayer when Gamma-value of the        standard-PQ-displayer reaches the target value, the value of γ₀′        is Gamma-value of the core of the standard-PQ-displayer when        picture quality of the standard-PQ-displayer reaches a target,        the value of γ_(n) is Gamma-value of the core of the        to-be-adjusted-displayer when Gamma-value of the        to-be-adjusted-displayer reaches the target value, and the value        of γ_(n)′ is Gamma-value of the core of the        to-be-adjusted-displayer when the picture quality of the        to-be-adjusted-displayer reaches the target.

Preferably, the device for adjusting picture quality of displayerfurther includes:

-   -   an acquiring module, configured to acquire a functional        relationship between Gamma-value of the displayer and        Gamma-value of the core, and a functional relationship between        Gamma-value of the core of the standard-PQ-displayer and        Gamma-value of the core of the to-be-adjusted display; and    -   an algorithm module, configured to acquire the preset algorithm        for computing the value of γ_(n)′ corresponding to the        to-be-adjusted-displayer by operation on the functional        relationships.

Preferably, the functional relationship between Gamma-value of thedisplayer and Gamma-value of the core is:

Gamma-value of the displayer including Gamma-value of the core andGamma-value of a Timer Control Register, the functional relationshipbetween Gamma-value of the displayer and, Gamma-value of the core andGamma-value of the Timer Control Register being represented as follows:

n{circumflex over ( )}(γ_(n)·γ_(Tn))=n{circumflex over ( )}a, for thestandard-PQ-displayer, when Gamma-value of the displayer is the targetvalue a; and

n{circumflex over ( )}(γ_(n)·γ_(Tn))=n{circumflex over ( )}a, for theto-be-adjusted-displayer, when Gamma-value of the displayer is thetarget value a; and,

Gamma-value of the Timer Control Register being determined by a screendriving plate and is a fixed value; the value of γ_(T0) is Gamma-valueof the Timer Control Register of the standard-PQ display; the value ofγ_(Tn) is Gamma-value of the Timer Control Register of theto-be-adjusted-displayer.

Preferably, the preset algorithm is γ_(n)′=γ₀′·γ_(n)/γ₀.

Preferably, the device for adjusting picture quality of displayerfurther includes an inputting module;

-   -   the adjusting module is further configured to adjust the core to        make Gamma-value of the standard-PQ-displayer reach the target        value under the preset gray scale, and to take the corresponding        Gamma-value of the core as the value of γ₀ under the preset        value; and    -   adjusting the core to make picture quality of the        standard-PQ-displayer reach the target under the preset gray        scale, and taking the current Gamma-value of the core as the        value of γ₀′ under the preset value;    -   the inputting module is configured to input the values of γ₀ and        γ₀′ corresponding to the standard-PQ-displayer into the        to-be-adjusted-displayer.

Preferably, the device for adjusting picture quality of displayerfurther includes:

-   -   a target value setting module, configured to set the target        value of Gamma-value of the displayer corresponding to the        preset gray scale according to gray level.

Preferably, the target value setting module is also configured to setthe target value of Gamma-value of the displayer corresponding to a grayscale of a lower gray level greater than or equal to the target value ofGamma-value of the displayer corresponding to a gray scale of a highergray level.

Preferably, the device for adjusting picture quality of displayerfurther includes:

-   -   a warning module, configured to send a warning message, when the        value of γ_(n)′ is not obtained by adjusting the core.

According to the present disclosure, a core of ato-be-adjusted-displayer is adjusted to make Gamma-value of theto-be-adjusted-displayer reach a target value under a preset gray scale,and the corresponding Gamma-value of the core is taken as the value ofγ_(n) under the preset value; the value of γ_(n)′ corresponding to theto-be-adjusted-displayer is computed by a preset algorithm based on thevalue of γ_(n), the values of γ₀ and γ₀′ corresponding to astandard-PQ-displayer, which are under one same gray scale; and picturequality of the to-be-adjusted-displayer is adjusted according to thevalue of γ_(n)′; and, the value of γ₀ is Gamma-value of a core of thestandard-PQ-displayer when Gamma-value of the standard-PQ-displayerreaches the target value, the value of γ₀′ is Gamma-value of the core ofthe standard-PQ-displayer when picture quality of thestandard-PQ-displayer reaches a target, the value of γ_(n) isGamma-value of the core of the to-be-adjusted-displayer when Gamma-valueof the to-be-adjusted-displayer reaches the target value, and the valueof γ_(n)′ is Gamma-value of the core of the to-be-adjusted-displayerwhen the picture quality of the to-be-adjusted-displayer reaches thetarget. It is realized that the value of γ_(n)′ corresponding to eachto-be-adjusted-displayer corresponds to the components of the displayer,by computing the value of γ_(n)′ and adjusting cores of theto-be-adjusted-displayers. The value of γ_(n)′ is different when thecomponent is different, thereby whether the components are inconsistency has nothing to do with the adjustment of picture quality ofthe to-be-adjusted-displayers.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flow chart of a first embodiment of the method for adjustingpicture quality of displayer according to the present disclosure;

FIG. 2 is a flow chart of a second embodiment of the method foradjusting picture quality of displayer according to the presentdisclosure;

FIG. 3 is a flow chart of a third embodiment of the method for adjustingpicture quality of displayer according to the present disclosure;

FIG. 4 is a flow chart of a fourth embodiment of the method foradjusting picture quality of displayer according to the presentdisclosure;

FIG. 5 is a flow chart of a fifth embodiment of the method for adjustingpicture quality of displayer according to the present disclosure;

FIG. 6 is a function module diagram of a first embodiment of the devicefor adjusting picture quality of displayer according to the presentdisclosure;

FIG. 7 is a function module diagram of a second embodiment of the devicefor adjusting picture quality of displayer according to the presentdisclosure;

FIG. 8 is a function module diagram of a third embodiment of the devicefor adjusting picture quality of displayer according to the presentdisclosure;

FIG. 9 is a function module diagram of a fourth embodiment of the devicefor adjusting picture quality of displayer according to the presentdisclosure;

FIG. 10 is a function module diagram of a fifth embodiment of the devicefor adjusting picture quality of displayer according to the presentdisclosure.

The realization, functional characteristics and advantages of the objectof the present disclosure will be further explained with reference tothe attached drawings in combination with embodiments.

DETAILED DESCRIPTION OF THE EMBODIMENTS

It should be understood that the specific embodiments described hereinare only for the purpose of explaining the present disclosure and arenot intended to limit the present disclosure.

The present disclosure provides a method for adjusting picture qualityof a displayer.

Referring to FIG. 1, FIG. 1 is a flow chart of a first embodiment of themethod for adjusting picture quality of displayer according to thepresent disclosure.

In one embodiment, the method for adjusting picture quality of displayerincludes:

Step S10, adjusting a core of a to-be-adjusted-displayer to makeGamma-value of the to-be-adjusted-displayer reach a target value under apreset gray scale, and taking the current Gamma-value of the core as thevalue of γ_(n) under the preset value.

For displayers, in order to make all picture quality of displayers thesame, it is necessary to strictly control components of the displayersin consistency so as to reduce performance difference between themass-produced displayers, and to adjust the to-be-adjusted-displayersaccording to a standard-PQ-displayer as standard so as to make all thepicture quality of the to-be-adjusted-displayers reach or approximatelyreach the picture quality of the standard-PQ-displayer. When Gamma-valueof a displayer reaches a value that makes the best picture quality, thepicture quality of the displayer would have been adjusted to the targetpicture quality. Gamma-value of the displayer includes Gamma-value ofthe core and Gamma-value of the Timer Controller Register (TCON) of thedisplayer. And since Gamma-value of TCON is determined by properties ofthe screen driving plate, that is, Gamma-value of TCON of the displayeris fixed, adjusting picture quality is actually to adjust Gamma-value ofthe core. Generally speaking, adjusting picture quality is to adjustdifferent gray scales. Because there commonly divided with 256 differentgray scales, Gamma-values of a displayer don't have to be the same whenthe displayer reaches one target picture quality under different grayscales, that is, Gamma-values of the core don't have to be the same. Asit is convenient to measure Gamma-value of a displayer, and same picturequality corresponds to same Gamma-value of the displayers, ato-be-adjusted-displayer differs only in Gamma-value of the core incomparison with the standard-PQ-displayer when theto-be-adjusted-displayer reaches the same picture quality with that ofthe standard-PQ-displayer. And Gamma-value of the core of thestandard-PQ-displayer is known when the adjustment is finished,Gamma-value of TCON may be presented in relationship with Gamma-value ofthe core and/or Gamma-value of the displayer, which means the only oneunknown is Gamma-value of the core of the to-be-adjusted display; adjusta core of a to-be-adjusted-displayer to make Gamma-value of theto-be-adjusted-displayer reach a target value under a preset gray scale,and take the corresponding Gamma-value of the core as the value of γ_(n)under the preset value; thereby, excluding the effect caused byinconvenient measurement of Gamma-value of TCON.

Step S20, computing the value of γ_(n)′ corresponding to theto-be-adjusted-displayer by a preset algorithm based on the value ofγ_(n), the values of γ₀ and γ₀′ corresponding to astandard-PQ-displayer, which are under one same gray scale.

As mentioned above, as only Gamma-value of the core of theto-be-adjusted-displayer is unknown, and Gamma-value of the displayerincludes Gamma-value of the core and Gamma-value of the TCON, a presetalgorithm may be obtained through mathematical operation according tothe relationship between Gamma-value of the to-be-adjusted-displayer,Gamma-value of the standard-PQ-displayer, Gamma-value of the cores andthe TCONs of the to-be-adjusted-displayer and the standard-PQ-displayer.That is, Gamma-value of the core of the to-be-adjusted-displayer ispresented by Gamma-value of the to-be-adjusted-displayer and Gamma-valueof the TCON of the to-be-adjusted-displayer, and Gamma-value of theto-be-adjusted-displayer and Gamma-value of the TCON of theto-be-adjusted-displayer may be presented by Gamma-value of thestandard-PQ-displayer and Gamma-value of the core of thestandard-PQ-displayer. It means that to present Gamma-value of the coreof the to-be-adjusted-displayer by Gamma-value of thestandard-PQ-displayer and Gamma-value of the core of thestandard-PQ-displayer (the preset algorithm), and Gamma-value of thecore of the standard-PQ-displayer is known (γ₀, γ₀′), the value of γ_(n)of the to-be-adjusted-displayer may also be obtained by adjustment,therefore the value of γ_(n)′ corresponding to theto-be-adjusted-displayer may be computed according to the presetalgorithm and, the value of γ₀ is Gamma-value of a core of thestandard-PQ-displayer when Gamma-value of the standard-PQ-displayerreaches the target value, the value of γ₀′ is Gamma-value of the core ofthe standard-PQ-displayer when picture quality of thestandard-PQ-displayer reaches a target, the value of γ_(n) isGamma-value of the core of the to-be-adjusted-displayer when Gamma-valueof the to-be-adjusted-displayer reaches the target value, and the valueof γ_(n)′ is Gamma-value of the core of the to-be-adjusted-displayerwhen the picture quality of the to-be-adjusted-displayer reaches thetarget.

Step S30, adjusting picture quality of the to-be-adjusted-displayeraccording to the value of γ_(n)′;

and, the value of γ₀ is Gamma-value of a core of thestandard-PQ-displayer when Gamma-value of the standard-PQ-displayerreaches the target value, the value of γ₀′ is Gamma-value of the core ofthe standard-PQ-displayer when picture quality of thestandard-PQ-displayer reaches a target, the value of γ_(n) isGamma-value of the core of the to-be-adjusted-displayer when Gamma-valueof the to-be-adjusted-displayer reaches the target value, and the valueof γ_(n)′ is Gamma-value of the core of the to-be-adjusted-displayerwhen the picture quality of the to-be-adjusted-displayer reaches thetarget.

The core of the to-be-adjusted-displayer is adjusted to make Gamma-valueof the core be the value of γ_(n)′ under the gray scale, so as torealize the adjustment of the picture quality. In this case, Gamma-valueof the to-be-adjusted-displayer is the same as that of thestandard-PQ-displayer, that is, the picture quality of theto-be-adjusted-displayer is the same as that of thestandard-PQ-displayer. Traditional picture quality adjustment method isto directly copy Gamma-value of the core of the standard-PQ-displayer tothe to-be-adjusted-displayer. When Gamma-value of the TCON of thestandard-PQ-displayer is different from that of theto-be-adjusted-displayer, i.e., when there is performance differencebetween individual products, Gamma-value of the to-be-adjusted-displayerwill be different from that of the standard-PQ-displayer, i.e. thepicture quality of the two displayers is different. The picture qualityof the displayers is adjusted by adaptively computing all Gamma-value ofthe cores of to-be-adjusted-displayers, so that eachto-be-adjusted-displayer may have the same picture quality with that ofthe standard-PQ-displayer regardless of whether the components of thedisplayers are in consistency, which is simple and efficient.

According to the present embodiment, the picture quality of thedisplayers is adjusted by adaptively computing all Gamma-value of thecore of to-be-adjusted-displayers, so that each to-be-adjusted-displayermay have the same picture quality with that of the standard-PQ-displayerregardless of whether the components of the displayers are inconsistency, which is simple and efficient.

Referring to FIG. 2, FIG. 2 is a flow chart of a second embodiment ofthe method for adjusting picture quality of displayer according to thepresent disclosure; According to the first embodiment of the method foradjusting picture quality of displayer, the method also includes:

Step S40, acquiring a functional relationship between Gamma-value of thedisplayer and Gamma-value of the core, and a functional relationshipbetween Gamma-value of the core of the standard-PQ-displayer andGamma-value of the core of the to-be-adjusted display; and

Step S50, acquiring the preset algorithm for computing the value ofγ_(n)′ corresponding to the to-be-adjusted-displayer by operation on thefunctional relationships.

A functional relationship between Gamma-value of the displayer andGamma-value of the core, and a functional relationship betweenGamma-value of the core of the standard-PQ-displayer and Gamma-value ofthe core of the to-be-adjusted display are acquired; and the presetalgorithm for computing the value of γ_(n)′ corresponding to theto-be-adjusted-displayer is acquired by operation on the functionalrelationships. In one embodiment, the computing process according to thepreset algorithm is as follows, in which the target value of Gamma-valueof the displayer is taken as 2.2 as an example for description. Ofcourse, Gamma-value of the displayer may also be any other values; underthe gray scale n, Gamma-value of the TCON of the standard-PQ-displayeris recorded as the value of γ_(T0), Gamma-value of the core is recordedas the value of γ₀ when Gamma-value of the displayer is 2.2, and whenGamma-value of the core is the value of γ₀, the standard-PQ-displayerhas the target picture quality, and Gamma-value of the displayer is a;record Gamma-value of the TCON of the to-be-adjusted-displayer as thevalue of γ_(Tn), and when Gamma-value of the displayer reaches 2.2,Gamma-value of its core is the value of γ_(n). When Gamma-value of theto-be-adjusted-displayer is also a, the to-be-adjusted-displayer has thetarget picture quality same with that of the standard-PQ-displayer, andthe corresponding Gamma-value of the core is the value of γ_(n)′; thefunctional relationship between Gamma-value of the displayer andGamma-value of the core and the TCON is represented as follows:

n{circumflex over ( )}(γ₀′−γ_(T0))=n{circumflex over ( )}a  (1)

n{circumflex over ( )}(γ₀·γ_(T0))=n{circumflex over ( )}2.2  (2)

n{circumflex over ( )}(γ_(n)′·γ_(Tn))=n{circumflex over ( )}a  (3)

n{circumflex over ( )}(γ_(n)·γ_(Tn))=n{circumflex over ( )}2.2  (4)

From the above equations (1) and (3), (2) and (4), it may be obtained asfollows:

n{circumflex over ( )}(γ₀′·γ_(T0))={circumflex over( )}(γ_(n)′·γ_(Tn))  (5)

n{circumflex over ( )}(γ₀·γ_(T0))=n{circumflex over( )}(γ_(n)·γ_(Tn))  (6)

That is,

γ₀′·γ_(T0)=γ_(n)′·γ_(Tn)  (7)

γ₀·γ_(T0)=γ_(n)′·γ_(Tn)  (8)

From equations (7) and (8), it may be obtained as follows:

γ₀′/γ₀=γ_(n)′/γ_(n)  (9)

That is,

γ_(n)′=γ₀′·γ_(n)/γ₀  (10)

The above formula (10) is the preset algorithm. It may be known from theformula (10) that as long as the values of γ₀ and γ₀′ corresponding tothe standard-PQ-displayer, and the value of γ_(n) of theto-be-adjusted-displayer, are determined, the value of γ_(n)′corresponding to the to-be-adjusted-displayer is determined. And thevalue of γ_(n)′ is right the Gamma-value of the core to be adjusted tofor the picture quality same with that of the standard-PQ-displayer. Itis simple to obtain the value of γ_(n)′ corresponding to theto-be-adjusted-displayer via the preset algorithm, which corresponds toGamma-value of the core that makes the to-be-adjusted-displayer gain thesame picture quality with that of the standard-PQ-displayer.

In this embodiment, the preset algorithm for computing the value ofγ_(n)′ corresponding to the to-be-adjusted-displayer is obtained by thefunctional relationship between Gamma-value of displayer and Gamma-valueof core, and the functional relationship between Gamma-value of the coreof the standard-PQ-displayer and Gamma-value of the core of theto-be-adjusted-displayer. It is simple to obtain the value of γ_(n)′corresponding to the to-be-adjusted-displayer via the preset algorithm,which corresponds to Gamma-value of the core that makes theto-be-adjusted-displayer gain the same picture quality with that of thestandard-PQ-displayer.

Referring to FIG. 3, FIG. 3 is a flow chart of a third embodiment of themethod for adjusting picture quality of displayer according to thepresent disclosure; According to the second embodiment of the method foradjusting picture quality of displayer, before the operation S10, themethod also includes:

S60, adjusting the core to make Gamma-value of the standard-PQ-displayerreach the target value under the preset gray scale, and taking thecurrent Gamma-value of the core as the value of γ₀ under the presetvalue;

S70, adjusting the core to make picture quality of thestandard-PQ-displayer reach the target under the preset gray scale, andtaking the current Gamma-value of the core as the value of γ₀′ under thepreset value;

S80, inputting the values of γ₀ and γ₀′ corresponding to thestandard-PQ-displayer into the to-be-adjusted-displayer.

As mentioned above, to obtain the value of γ_(n)′ corresponding to theto-be-adjusted-displayer through the preset algorithm makes it necessaryto know the values of γ₀ and γ₀′ corresponding to thestandard-PQ-displayer, and the value of γ_(n) of theto-be-adjusted-displayer, and the values of γ₀ and γ₀′ are obtained byadjusting the standard-PQ-displayer. adjust the core to make Gamma-valueof the standard-PQ-displayer reach the target value under the presetgray scale, and taking the current Gamma-value of the core as the valueof γ₀ under the preset value; adjust the core to make picture quality ofthe standard-PQ-displayer reach the target under the preset gray scale,and taking the current Gamma-value of the core as the value of γ₀′ underthe preset value; Input the values of γ₀ and γ₀′ corresponding to thestandard-PQ-displayer into the to-be-adjusted-displayer after the valuesof γ₀ and γ₀′ are obtained, then it is only necessary for obtaining thevalue of γ_(n)′ corresponding to the to-be-adjusted-displayer to adjustthe to-be-adjusted-displayer so that Gamma-value of theto-be-adjusted-displayer reaches the target value; the values of γ₀ andγ₀′ corresponding to the standard-PQ-displayer may be inputted into theto-be-adjusted-displayers in one time, which are produced in one batch,so that picture quality adjustment may be carried out on the batch ofthe to-be-adjusted-displayers.

According to the embodiment, the values of γ₀ and γ₀′ corresponding tothe standard-PQ-displayer may be obtained in advance, and then input thevalues of γ₀ and γ₀′ into the to-be-adjusted-displayers, so that thepicture quality adjustment may be carried out on the batch of theto-be-adjusted-displayers.

Referring to FIG. 4, FIG. 4 is a flow chart of a fourth embodiment ofthe method for adjusting picture quality of displayer according to thepresent disclosure; According to the third embodiment of the method foradjusting picture quality of displayer, the method also includes:

S90, setting the target value of Gamma-value of the displayercorresponding to the preset gray scale according to gray level.

The adjustment of picture quality is not only to adjust Gamma-value ofthe core, but also to adjust the color, etc. There are commonly dividedwith 256 gray levels ranging from 0 to 255, generally speaking, if thegray level is higher, the color displayed is richer, the picture isfiner, and more details are shown. However, too low gray scale makes itnecessary to increase Gamma-value of the displayer when to improve thecontrast. For example, when the gray scale is high, Gamma-value of thedisplayer is set to 2.2, and when the gray scale is too low, Gamma-valueof the displayer is adjusted to 2.4. The target value of Gamma-value ofthe displayer corresponding to the preset gray scale according to graylevel. And the gray levels may be divided according to the requirementsof picture contrast during the adjustment, and also may be dividedaccording to empirical values. For example, set the target value ofGamma-value of the displayer, which is corresponding to the preset grayscale under the gray level 0˜10, to 2.4, and set the target value of thedisplayer, which is corresponding to the preset gray scale under thegray level 11 to 255, to 2.2. Set the target value of the displayer,which is corresponding to the preset gray scale, according to the graylevels may improve the contrast of the picture quality.

According to the present embodiment, setting the target value of thedisplayer corresponding to the preset gray scale according to the graylevels may improve the contrast of the picture quality.

Referring to FIG. 5, FIG. 5 is a flow chart of a fifth embodiment of themethod for adjusting picture quality of displayer according to thepresent disclosure. According to the fourth embodiment of the method foradjusting picture quality of displayer, the method also includes:

S100, sending a warning message, when the value of γ_(n)′ value is notobtained by adjusting the core.

Because the value of γ_(n)′ is computed according to the presetalgorithm, and there exists difference between performance ofmass-produced products, when the difference between performance of somedisplayers and that of the standard-PQ-displayer is smaller, thedifference between the computed value of γ_(n)′ and the value of γ_(n)′corresponding to the standard-PQ-displayer is also smaller, while thedifference is larger for some displayers, and in this case, thedifference between the computed value of γ_(n)′ and the value of γ₀′corresponding to the standard-PQ-displayer is also larger. Gamma-valueof core may be adjusted within a range. When the difference between thecomputed value of γ_(n)′ and the value of γ₀′ corresponding to thestandard-PQ-displayer is large (beyond the adjustment range ofGamma-value of core), Gamma-value of the core of theto-be-adjusted-displayer may not necessarily be adjusted to the computedvalue of γ_(n)′. In this case, it may remind in ways such as sending awarning message, so as to determine whether it is necessary to changehardware of the to-be-adjusted-displayer, etc., thereby it is ensuredthat all displayers may be adjusted to have the target picture qualityof the standard-PQ-displayer.

According to the present embodiment, a warning message is sent, when thevalue of γ_(n)′ value is not obtained by adjusting the core, so that theworker may deal with the displayer, thus to ensure that all thedisplayers may be adjusted to have the target picture quality.

The present disclosure also provides a device for adjusting picturequality of displayer.

Referring to FIG. 6, FIG. 6 is a function module diagram of a firstembodiment of the device for adjusting picture quality of displayeraccording to the present disclosure.

In one embodiment, the method for adjusting picture quality of displayerincludes: an adjusting module 10 and a computing module 20.

An adjusting module 10 is configured to adjust a core of ato-be-adjusted-displayer to make Gamma-value of theto-be-adjusted-displayer reach a target value under a preset gray scale,and taking the current Gamma-value of the core as the value of γ_(n)under the preset value; and

-   -   for displayers, in order to make all picture quality of        displayers the same, it is necessary to strictly control        components of the displayers in consistency so as to reduce        performance difference between the mass-produced displayers, and        to adjust the to-be-adjusted-displayers according to a        standard-PQ-displayer as standard so as to make all the picture        quality of the to-be-adjusted-displayers reach or approximately        reach the picture quality of the standard-PQ-displayer. Picture        quality of a displayer has been adjusted to the target picture        quality, when Gamma-value of the displayer reaches a value that        makes the best picture quality. Gamma-value of a displayer        includes Gamma-value of the core and Gamma-value of the Timer        Controller Register (TCON) of the displayer. And since        Gamma-value of TCON is determined by properties of the screen        driving plate, that is, Gamma-value of TCON of the displayer is        fixed, to adjust picture quality is actually to adjust        Gamma-value of the core. Generally speaking, to adjusting        picture quality is to adjust different gray scales. Because        there commonly divided with 256 different gray scales,        Gamma-value of a displayer don't have to be the same when the        displayer reaches one target picture quality under different        gray scales, that is, Gamma-value of the core don't have to be        the same. As it is convenient to measure Gamma-value of a        displayer, and same picture quality corresponds to same        Gamma-value of the displayers machine, a        to-be-adjusted-displayer differs only in Gamma-value of the core        in comparison with the standard-PQ-displayer when the        to-be-adjusted-displayer reaches the same picture quality with        that of the standard-PQ-displayer. And Gamma-value of the core        of the standard-PQ-displayer is known when the adjustment is        finished, Gamma-value of TCON may be presented in relationship        with Gamma-value of the core and/or Gamma-value of the        displayer, which means the only one unknown is Gamma-value of        the core of the to-be-adjusted display; adjust a core of a        to-be-adjusted-displayer to make Gamma-value of the        to-be-adjusted-displayer reach a target value under a preset        gray scale, and take the corresponding Gamma-value of the core        as the value of γ_(n) under the preset value; thereby, excluding        the effect caused by inconvenient measurement of Gamma-value of        TCON.

A computing module 20 is configured to compute the value of γ_(n)′corresponding to the to-be-adjusted-displayer by a preset algorithmbased on the value of γ_(n), the values of γ₀ and γ₀′ corresponding to astandard-PQ-displayer, which are under one same gray scale;

As mentioned above, as only Gamma-value of the core of theto-be-adjusted-displayer is unknown, and Gamma-value of the displayerincludes Gamma-value of the core and Gamma-value of the TCON, a presetalgorithm may be obtained through mathematical operation according tothe relationship between Gamma-value of the to-be-adjusted-displayer,Gamma-value of the standard-PQ-displayer, Gamma-value of the cores andthe TCONs of the to-be-adjusted-displayer and the standard-PQ-displayer.That is, Gamma-value of the core of the to-be-adjusted-displayer ispresented by Gamma-value of the to-be-adjusted-displayer and Gamma-valueof the TCON of the to-be-adjusted-displayer, and Gamma-value of theto-be-adjusted-displayer and Gamma-value of the TCON of theto-be-adjusted-displayer may be presented by Gamma-value of thestandard-PQ-displayer and Gamma-value of the core of thestandard-PQ-displayer. It means that to present Gamma-value of the coreof the to-be-adjusted-displayer by Gamma-value of thestandard-PQ-displayer and Gamma-value of the core of thestandard-PQ-displayer (the preset algorithm), and Gamma-value of thecore of the standard-PQ-displayer is known (the values of γ₀ and γ₀′),the value of γ_(n) of the to-be-adjusted-displayer may also be obtainedby adjustment, therefore the value of γ_(n)′ corresponding to theto-be-adjusted-displayer may be computed according to the presetalgorithm and the value of γ₀ is Gamma-value of a core of thestandard-PQ-displayer when Gamma-value of the standard-PQ-displayerreaches the target value, the value of γ₀′ is Gamma-value of the core ofthe standard-PQ-displayer when picture quality of thestandard-PQ-displayer reaches a target, the value of γ_(n) isGamma-value of the core of the to-be-adjusted-displayer when Gamma-valueof the to-be-adjusted-displayer reaches the target value, and the valueof γ_(n)′ is Gamma-value of the core of the to-be-adjusted-displayerwhen the picture quality of the to-be-adjusted-displayer reaches thetarget.

The adjusting module 10 is also configured to adjust picture quality ofthe to-be-adjusted-displayer according to the value of γ_(n)′;

-   -   and, the value of γ₀ is Gamma-value of a core of the        standard-PQ-displayer when Gamma-value of the        standard-PQ-displayer reaches the target value, the value of γ₀′        is Gamma-value of the core of the standard-PQ-displayer when        picture quality of the standard-PQ-displayer reaches a target,        the value of γ_(n) is Gamma-value of the core of the        to-be-adjusted-displayer when Gamma-value of the        to-be-adjusted-displayer reaches the target value, and the value        of γ_(n)′ is Gamma-value of the core of the        to-be-adjusted-displayer when the picture quality of the        to-be-adjusted-displayer reaches the target.

The core of the to-be-adjusted-displayer is adjusted to make Gamma-valueof the core be the value of γ_(n)′ under the gray scale, so as torealize the adjustment of the picture quality. In this case, Gamma-valueof the to-be-adjusted-displayer is the same as that of thestandard-PQ-displayer, that is, the picture quality of theto-be-adjusted-displayer is the same as that of thestandard-PQ-displayer. Traditional picture quality adjustment method isto directly copy Gamma-value of the core of the standard-PQ-displayer tothe to-be-adjusted-displayer. When Gamma-value of the TCON of thestandard-PQ-displayer is different from that of theto-be-adjusted-displayer, i.e., when there is performance differencebetween individual products, Gamma-value of the to-be-adjusted-displayerwill be different from that of the standard-PQ-displayer, i.e. thepicture quality of the two displayers is different. The picture qualityof the displayers is adjusted by adaptively computing all Gamma-value ofthe core of to-be-adjusted-displayers, so that eachto-be-adjusted-displayer may have the same picture quality with that ofthe standard-PQ-displayer regardless of whether the components of thedisplayers are in consistency, which is simple and efficient.

According to the present embodiment, the picture quality of thedisplayers is adjusted by adaptively computing all Gamma-value of thecore of to-be-adjusted-displayers, so that each to-be-adjusted-displayermay have the same picture quality with that of the standard-PQ-displayerregardless of whether the components of the displayers are inconsistency, which is simple and efficient.

Referring to FIG. 7, FIG. 7 is a function module diagram of a secondembodiment of the device for adjusting picture quality of displayeraccording to the present disclosure. The device for adjusting picturequality of displayer also includes an acquiring module 30 and acomputing module 40.

The acquiring module 30 is configured to acquire a functionalrelationship between Gamma-value of the displayer and Gamma-value of thecore, and a functional relationship between Gamma-value of the core ofthe standard-PQ-displayer and Gamma-value of the core of theto-be-adjusted display; and

-   -   the algorithm module 40, configured to acquire the preset        algorithm for computing the value of γ_(n)′ corresponding to the        to-be-adjusted-displayer by operation on the functional        relationships.

A functional relationship between Gamma-value of the displayer andGamma-value of the core, and a functional relationship betweenGamma-value of the core of the standard-PQ-displayer and Gamma-value ofthe core of the to-be-adjusted display are acquired; and the presetalgorithm for computing the value of γ_(n)′ corresponding to theto-be-adjusted-displayer is acquired by operation on the functionalrelationships. In one embodiment, the computing process according to thepreset algorithm is as follows, in which the target value of Gamma-valueof the displayer is taken as 2.2 as an example for description. Ofcourse, Gamma-value of the displayer may also be any other values; underthe gray scale n, Gamma-value of the TCON of the standard-PQ-displayeris recorded as the value of γ_(T0), Gamma-value of the core is recordedas the value of γ₀ when Gamma-value of the displayer is 2.2, and whenGamma-value of the core is the value of γ₀, the standard-PQ-displayerhas the target picture quality, and Gamma-value of the displayer is a;record Gamma-value of the TCON of the to-be-adjusted-displayer as thevalue of γ_(Tn), and when Gamma-value of the displayer reaches 2.2,Gamma-value of its core is the value of γ_(n). When Gamma-value of theto-be-adjusted-displayer is also a, the to-be-adjusted-displayer has thetarget picture quality same with that of the standard-PQ-displayer, andthe corresponding Gamma-value of the core is the value of γ_(n)′; thefunctional relationship between Gamma-value of the displayer andGamma-value of the core and the TCON is presented as follows:

n{circumflex over ( )}(γ₀′·γ_(T0))=n{circumflex over ( )}a  (1)

n{circumflex over ( )}(γ₀·γ_(T0))=n{circumflex over ( )}2.2  (2)

n{circumflex over ( )}(γ_(n)′·γ_(Tn))=n{circumflex over ( )}a  (3)

n{circumflex over ( )}(γ_(n)·γ_(Tn))=n{circumflex over ( )}2.2  (4)

From the above equations (1) and (3), (2) and (4), it may be obtained asfollows:

n{circumflex over ( )}(γ₀′·γ_(T0))=n{circumflex over( )}(γ_(n)′·γ_(Tn))  (5)

n{circumflex over ( )}(γ₀·γ_(T0))=n{circumflex over( )}(γ_(n)·γ_(Tn))  (6)

That is,

γ₀′·γ_(T0)=γ_(n)′·γ_(Tn)  (7)

γ₀′·γ_(T0)=γ_(n)·γ_(Tn)  (8)

From equations (7) and (8), it may be obtained as follows:

γ₀′/γ₀=γ_(n)′/γ_(n)  (9)

That is,

γ_(n)′=γ₀′·γ_(n)/γ₀  (10)

The above formula (10) is the preset algorithm. It may be known from theformula (10) that as long as the values of γ₀ and γ₀′ corresponding tothe standard-PQ-displayer, and the value of γ_(n) of theto-be-adjusted-displayer, are determined, the value of γ_(n)′corresponding to the to-be-adjusted-displayer is determined. And thevalue of γ_(n)′ is right the Gamma-value of the core to be adjusted tofor the picture quality same with that of the standard-PQ-displayer. Itis simple to obtain the value of γ_(n)′ corresponding to theto-be-adjusted-displayer via the preset algorithm, which corresponds toGamma-value of the core that makes the to-be-adjusted-displayer gain thesame picture quality with that of the standard-PQ-displayer.

In this embodiment, the preset algorithm for computing the value ofγ_(n)′ corresponding to the to-be-adjusted-displayer is obtained by thefunctional relationship between Gamma-value of displayer and Gamma-valueof core, and the functional relationship between Gamma-value of the coreof the standard-PQ-displayer and Gamma-value of the core of theto-be-adjusted-displayer. It is simple to obtain the value of γ_(n)′corresponding to the to-be-adjusted-displayer via the preset algorithm,which corresponds to Gamma-value of the core that makes theto-be-adjusted-displayer gain the same picture quality with that of thestandard-PQ-displayer.

Referring to FIG. 8, FIG. 8 is a function module diagram of a thirdembodiment of the device for adjusting picture quality of displayeraccording to the present disclosure. The device for adjusting picturequality of displayer also includes an inputting module 50.

The adjusting module 10 is also configured to adjust the core to makeGamma-value of the standard-PQ-displayer reach the target value underthe preset gray scale, and to take the corresponding Gamma-value of thecore as the value of γ₀ under the preset value; and

-   -   adjusting the core to make picture quality of the        standard-PQ-displayer reach the target under the preset gray        scale, and taking the current Gamma-value of the core as the        value of γ₀′ under the preset value;    -   the inputting module 50 is configured to input the values of γ₀        and γ₀′ corresponding to the standard-PQ-displayer into the        to-be-adjusted-displayer.

As mentioned above, to obtain the value of γ_(n)′ corresponding to theto-be-adjusted-displayer through the preset algorithm makes it necessaryto know the values of γ₀ and γ₀′ corresponding to thestandard-PQ-displayer, and the value of γ_(n) of theto-be-adjusted-displayer, and the values of γ₀ and γ₀′ are obtained byadjusting the standard-PQ-displayer. adjust the core to make Gamma-valueof the standard-PQ-displayer reach the target value under the presetgray scale, and taking the current Gamma-value of the core as the valueof γ₀ under the preset value; adjust the core to make picture quality ofthe standard-PQ-displayer reach the target under the preset gray scale,and taking the current Gamma-value of the core as the value of γ₀′ underthe preset value; Input the values of γ₀ and γ₀′ corresponding to thestandard-PQ-displayer into the to-be-adjusted-displayer after the valuesof γ₀ and γ₀′ are obtained, then it is only necessary for obtaining thevalue of γ_(n)′ corresponding to the to-be-adjusted-displayer to adjustthe to-be-adjusted-displayer so that Gamma-value of theto-be-adjusted-displayer reaches the target value; the values of γ₀ andγ₀′ corresponding to the standard-PQ-displayer may be inputted into theto-be-adjusted-displayers in one time, which are produced in one batch,so that picture quality adjustment may be carried out on the batch ofthe to-be-adjusted-displayers.

According to the embodiment, the values of γ₀ and γ₀′ corresponding tothe standard-PQ-displayer may be obtained in advance, and then input thevalues of γ₀ and γ₀′ into the to-be-adjusted-displayers, so that thepicture quality adjustment may be carried out on the batch of theto-be-adjusted-displayers.

Referring to FIG. 9, FIG. 9 is a function module diagram of a fourthembodiment of the device for adjusting picture quality of displayeraccording to the present disclosure. The device for adjusting picturequality of displayer also includes a target value setting module 60.

The target value setting module 60 is configured to set the target valueof Gamma-value of the displayer corresponding to the preset gray scaleaccording to the gray level.

According to the present embodiment, setting the target value of thedisplayer corresponding to the preset gray scale according to the graylevels may improve the contrast of the picture quality.

Referring to FIG. 10, FIG. 10 is a function module diagram of a fifthembodiment of the device for adjusting picture quality of displayeraccording to the present disclosure. The device for adjusting picturequality of displayer also includes a warning module 70.

The warning module 70 is configured to send a warning message, when thevalue of γ_(n)′ is not obtained by adjusting the core.

According to the present embodiment, a warning message is sent, when thevalue of γ_(n)′ value is not obtained by adjusting the core, so that theworker may deal with the displayer, thus to ensure that all thedisplayers may be adjusted to have the target picture quality.

The above is only the preferred embodiment of the present disclosure andis not therefore limiting the scope of the patent of the presentdisclosure. Any equivalent structure or equivalent process change madeby using the contents of the present specification and drawings, ordirectly or indirectly applied in other related technical fields, issimilarly included in the scope of the patent protection of the presentdisclosure.

1. A method for adjusting picture quality of displayer, comprising:adjusting a core of a to-be-adjusted-displayer to make Gamma-value ofthe to-be-adjusted-displayer reach a target value under a preset grayscale, and taking the current Gamma-value of the core as the value ofγ_(n) under the preset value; computing the value of γ_(n)′corresponding to the to-be-adjusted-displayer by a preset algorithmbased on the value of γ_(n), and the values of γ₀ and γ₀′ correspondingto a standard-PQ-displayer under one same gray scale; and adjustingpicture quality of the to-be-adjusted-displayer according to the valueof γ_(n)′; wherein, the value of γ₀ is the Gamma-value of a core of thestandard-PQ-displayer when the Gamma-value of the standard-PQ-displayerreaches the target value, the value of γ₀′ is the Gamma-value of thecore of the standard-PQ-displayer when picture quality of thestandard-PQ-displayer reaches the target, the value of γ_(n) is theGamma-value of the core of the to-be-adjusted-displayer when theGamma-value of the to-be-adjusted-displayer reaches the target value,and the value of γ_(n)′ is the Gamma-value of the core of theto-be-adjusted-displayer when the picture quality of theto-be-adjusted-displayer reaches the target.
 2. The method according toclaim 1, wherein the method further comprises: acquiring a functionalrelationship between the Gamma-value of the displayer and theGamma-value of the core, and a functional relationship between theGamma-value of the core of the standard-PQ-displayer and the Gamma-valueof the core of the to-be-adjusted-displayer; and acquiring the presetalgorithm for computing the value of γ_(n)′ corresponding to theto-be-adjusted-displayer by operation to the functional relationships.3. The method according to claim 2, wherein the functional relationshipbetween the Gamma-value of the displayer and the Gamma-value of the coreis: Gamma-values of the displayer comprising Gamma-value of the core andGamma-value of a Timer Control Register, the functional relationshipbetween Gamma-value of the displayer and, Gamma-value of the core andGamma-value of the Timer Control Register being represented as follows:n{circumflex over ( )}(γ₀·γ_(T0))=n{circumflex over ( )}a, for thestandard-PQ-displayer, when Gamma-value of the displayer is the targetvalue a; and n{circumflex over ( )}(γ_(n)·γ_(Tn))=n{circumflex over( )}a, for the to-be-adjusted-displayer, when Gamma-value of thedisplayer is the target value a; wherein, Gamma-value of the TimerControl Register is determined by a screen driving plate and is a fixedvalue; the value of γ_(T0) is the Gamma-value of the Timer ControlRegister of the standard-PQ-displayer; the value of γ_(Tn) is theGamma-value of the Timer Control Register of theto-be-adjusted-displayer.
 4. The method according to claim 2, whereinthe preset algorithm is γ_(n′)=γ₀′·γ_(n)/γ₀.
 5. The method according toclaim 1, wherein before the operation of adjusting a core of ato-be-adjusted-displayer to make Gamma-value of theto-be-adjusted-displayer reach a target value under a preset gray scale,and taking the current Gamma-value of the core as the value of γ_(n)under the preset value, the method further comprises: adjusting the coreto make the Gamma-value of the standard-PQ-displayer reach the targetvalue under the preset gray scale, and taking the current Gamma-value ofthe core as the value of γ₀ under the preset value; adjusting the coreto make picture quality of the standard-PQ-displayer reach the targetunder the preset gray scale, and taking the current Gamma-value of thecore as the value of γ₀′ under the preset value; inputting the values ofγ₀ and γ₀′ corresponding to the standard-PQ-displayer into theto-be-adjusted-displayer.
 6. The method according to claim 5, whereinthe method further comprises: setting the target value of theGamma-value of the displayer corresponding to the preset gray scaleaccording to gray level.
 7. The method according to claim 6, wherein theoperation of setting the target value of the Gamma-value of thedisplayer corresponding to the preset gray scale according to gray levelcomprises: setting the target value of the Gamma-value of the displayercorresponding to a gray scale of a lower gray level greater than orequal to the target value of the Gamma-value of the displayercorresponding to a gray scale of a higher gray level.
 8. The methodaccording to claim 1, wherein the method further comprises: sending awarning message, when the value of γ_(n)′ is not obtained by adjustingthe core.
 9. A device for adjusting picture quality, comprising aprocessor and a memory, wherein the processor executes instructionsstored in the memory to implement: an adjusting module, configured toadjust a core of a to-be-adjusted-displayer to make Gamma-value of theto-be-adjusted-displayer reach a target value under a preset gray scale,and taking the current Gamma-value of the core as the value of γ_(n)under the preset value; and a computing module, configured to computethe value of γ_(n)′ corresponding to the to-be-adjusted-displayer by apreset algorithm based on the value of γ_(n), the values of γ₀ and γ₀′corresponding to a standard-PQ-displayer, which are under one same grayscale; the adjusting module being further configured to adjust picturequality of the to-be-adjusted-displayer according to the value ofγ_(n)′; wherein, the value of γ₀ is the Gamma-value of a core of thestandard-PQ-displayer when the Gamma-value of the standard-PQ-displayerreaches the target value, the value of γ₀′ is the Gamma-value of thecore of the standard-PQ-displayer when picture quality of thestandard-PQ-displayer reaches the target, the value of γ_(n) is theGamma-value of the core of the to-be-adjusted-displayer when theGamma-value of the to-be-adjusted-displayer reaches the target value,and the value of γ_(n)′ is the Gamma-value of the core of theto-be-adjusted-displayer when the picture quality of theto-be-adjusted-displayer reaches the target.
 10. The device according toclaim 9, wherein the processor executes instructions stored in thememory to further implement: an acquiring module, configured to acquirea functional relationship between Gamma-value of the displayer andGamma-value of the core, and a functional relationship betweenGamma-value of the core of the standard-PQ-displayer and Gamma-value ofthe core of the to-be-adjusted-displayer; and an algorithm module,configured to acquire the preset algorithm for computing the value ofγ_(n)′ corresponding to the to-be-adjusted-displayer by operation to thefunctional relationships.
 11. The device according to claim 10, whereinthe functional relationship between Gamma-value of the displayer andGamma-value of the core is: Gamma-value of the displayer comprisingGamma-value of the core and Gamma-value of a Timer Control Register, thefunctional relationship between Gamma-value of the displayer and,Gamma-value of the core and Gamma-value of the Timer Control Registerbeing represented as follows: n{circumflex over( )}(γ₀·γ_(T0))=n{circumflex over ( )}a, for the standard-PQ-displayer,when Gamma-value of the displayer is the target value a; andn{circumflex over ( )}(γ_(n)·γ_(Tn))=n{circumflex over ( )}a, for theto-be-adjusted-displayer, when Gamma-value of the displayer is thetarget value a; wherein, Gamma-value of the Timer Control Register isdetermined by a screen driving plate and is a fixed value; the value ofγ_(T0) is Gamma-value of the Timer Control Register of thestandard-PQ-displayer; the value of γ_(Tn) is Gamma-value of the TimerControl Register of the to-be-adjusted-displayer.
 12. The deviceaccording to claim 10, wherein the preset algorithm isγ_(n)′=γ₀′·γ_(n)/γ₀.
 13. The device according to claim 9, wherein theprocessor executes instructions stored in the memory to furtherimplement an inputting module; the adjusting module is furtherconfigured to adjust the core to make Gamma-value of thestandard-PQ-displayer reach the target value under the preset grayscale, and to take the current Gamma-value of the core as the value ofγ₀ under the preset value; and adjusting the core to make picturequality of the standard-PQ-displayer reach the target under the presetgray scale, and taking the current Gamma-value of the core as the valueof γ₀′ under the preset value; the inputting module is configured toinput the values of γ₀ and γ₀′ corresponding to thestandard-PQ-displayer into the to-be-adjusted-displayer.
 14. The deviceaccording to claim 13, wherein the processor executes instructionsstored in the memory to further implement: a target value settingmodule, configured to set the target value of Gamma-value of thedisplayer corresponding to the preset gray scale according to graylevel.
 15. The device according to claim 14, wherein the target valuesetting module is further configured to set the target value ofGamma-value of the displayer corresponding to a gray scale of a lowergray level greater than or equal to the target value of Gamma-value ofthe displayer corresponding to a gray scale of a higher gray level. 16.The device according to claim 9, wherein the processor executesinstructions stored in the memory to further implement: a warningmodule, configured to send a warning message, when the value of γ_(n)′is not obtained by adjusting the core.